Chrysanthemum plant named ‘Zanmuday’

ABSTRACT

A  chrysanthemum  plant named ‘Zanmuday’ characterized by its medium sized blooms with yellow ray florets and prolific branching; natural season flowering date October 8 (week 41); blooming for a period of 5 weeks.

Botanical designation: Chrysanthemum×morifolium Ramat.

Cultivar denomination: ‘Zanmuday’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of chrysanthemum plant, botanically known as Chrysanthemum×morifolium Ramat., commercially known as a garden mum, and hereinafter referred to by the cultivar denomination ‘Zanmuday’. ‘Zanmuday’ is a product of a breeding and selection program for outdoor pot mums (garden mums) which had the objective of creating new cultivars with a double type inflorescence, a natural season flowering date around October 8 (week 41), blooming for a period of 5 weeks. ‘Zanmuday’ is a seedling resulting from a cross of the female parent id 24636 with the male parent id 26443. Plants of the new cultivar ‘Zanmuday’ differ from plants of the female parent in inflorescence size; the inflorescences of the seedling are larger than those of the female parent. Plants of the new cultivar ‘Zanmuday’ differ from plants of the male parent in natural-season flowering date; plants of the seedling flower in an earlier period than those of the male parent.

The new and distinct cultivar was discovered and selected as a flowering plant by Wilhelmus Bernardus Blom on a cultivated field in Rijsenhout, The Netherlands in 2007. The first act of asexual production of ‘Zanmuday’ was accomplished when vegetative cuttings from the initial selection in 2007 were propagated further in a controlled environment in Rijsenhout, The Netherlands. The new cultivar has been found to retain its distinctive characteristics through successive propagations.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention of a new and distinct variety of chrysanthemum is shown in the accompanying drawings, the color being as nearly true as possible with color photographs of this type.

FIG. 1 shows a plant of the cultivar in full bloom.

FIG. 2 shows the various stages of bloom of the new cultivar.

FIG. 3 shows the various stages of foliage of the new cultivar.

DESCRIPTION OF THE INVENTION

The observations and measurements were gathered from plants grown out door in Rijsenhout, The Netherlands under natural day length and temperature and planted in week 23 in 2005. The natural blooming date of this crop was October 8 (week 41) . The average height of the plants was 35 cm. No growth retardants were used. No tests were done on disease or insect resistance or susceptibility. No tests were done on cold or drought tolerance. This new variety produces medium sized blooms with yellow ray florets blooming for a period of 5 weeks.

From the cultivars known to inventor the most similar existing cultivar in comparison to ‘Zanmuday’ are ‘Zanmugoldru’ (U.S. Plant Pat. No. 20,462) and ‘Zanmugolmine’ (U.S. Plant Pat. No. 22,618). When ‘Zanmuday’, ‘Zanmugoldu’ and ‘Zanmugolmine’ are being compared the following differences are noticed: (1) Plant vigor. And (2) Natural season flowering date. (1) Plants of ‘Zanmuday’ are slightly less vigorous than those of ‘Zanmugoldru’, and more vigorous than those of ‘Zanmugolmine. (2) Plants of ‘Zanmuday’ and of ‘Zanmugoldru’ flower later in the season than those of ‘Zanmugolmine’.

The following is a description of the plant and characteristics that distinguish ‘Zanmuday’ as a new and distinct variety.

The color designations are taken from the plant itself. Accordingly, any discrepancies between the color designations and the colors depicted in the photographs are due to photographic tolerances. The color chart used in this description is: The Royal Horticultural Society Colour Chart, edition 2001.

TABLE 1 Botanical Description of Chrysanthemum x morifolium Ramat. ‘Zanmuday’ Bud Size: Small; cross-section 6 mm, height 4 mm Shape: Round Texture: Pubescent Outside color: Greyed-green 191A Phyllaries Number: 24-25, arranged in 3 rows Shape: Elliptic Apex: Acute Base: Truncate Margin: Entire Color: Upper side: Green 138A Lower side: Green 139C Length and width: 3-4 mm; 1.5 mm Texture: Pubescent Inflorescences Type: Double Height: 2-2.2 cm Diameter: 5 cm Peduncle length: 7-8 cm Peduncle color: Green 138B Peduncle diameter: 1.5 mm Peduncle texture: Pubescent Number per branch: Approx. 6-8 inflorescences Duration of flowering: 5 weeks Seeds: Produced in small quantities, ovate, Greyed-brown 199A, length 1.5 mm, diameter 0.5 mm Fragrance: Faint chrysanthemum odor Color inflorescences Center of Immature stage: Yellow 13B; inflorescence: Mature stage: Yellow 13B Color of upper side of Yellow 12B ray florets: Color of lower side of Yellow 11A ray florets: Tonality from A garden mum with bright yellow blooms distance: Color of ray florets Yellow 12B after aging of the plant: Ray florets Texture: Upper and lower side smooth Number: 220-240 Shape: Elliptic Apex: Dentate Base: Attenuate Cross-section: Flat Longitudinal axis: Straight to reflexing Length of corolla 2-3 mm tube: Ray floret margin: Entire Ray floret length: 1.8-2.5 cm Ray floret width: 2-6 mm Ratio length/width: Medium Disc florets Absent Receptacle Color: Yellow-green 145D Shape: Conical raised Height: 5 mm Diameter: 4 mm Reproductive Organs Androecium: Absent Pollen: Absent Gynoecium: Present on ray florets Style color: Yellow-green 154C Style length: 4 mm Stigma color: Yellow 7A Stigma width: 1 mm Ovary: Enclosed in calyx Plant Form: Grown as a spray type pot mum, outdoor raised and mounded Growth habit: Spherical shape Growth rate: Medium to high Height: 35 cm Width: 50 cm Stem color: Greyed-brown 199A Stem strength: Strong Stem brittleness: Not brittle Stem anthocyanin Not observed coloration: Internode length: 1.5-2.5 cm Length of lateral From top to bottom 18-20 cm branch: Lateral branch color: Green 137 C Lateral branch, Strong attachment: Lateral branch 2 mm diameter: Branching (average Prolific with 8 breaks after pinching number of lateral branches): Natural season October 8 (week 41) blooming date: Foliage Leaf color: Upper side: Green 137A Lower side: Green 137B Color midvein: Upper side: Yellow-green 147D Lower side: Yellow-green 148D Size: Small; length 2-5.5 cm, width 1.6-2.6 cm Quantity (number per 24-26 lateral branches): Shape: Elliptic Texture upper side: Sparsely pubescent Texture under side: Pubescent Venation Palmate arrangement: Shape of margin: Serrated Shape of base of sinus Rounded between lateral lobes: Margin of sinus Diverging between lateral lobes: Shape of base: Attenuate to truncate Apex: Mucronulate Petiole length: 0.2-0.5 cm Petiole diameter: 1 mm Petiole color: Yellow-green 147D

TABLE 2 Differences with the comparison varieties, when grown under identical conditions ‘Zamuday’ ‘Zanmugolmine’ ‘Zanmugoldru’ Plant width 50 cm 25 cm 50-55 cm Natural season week 41 week 34 week 41 flowering date 

I claim:
 1. A new and distinct chrysanthemum plant named ‘Zanmuday’ as described and illustrated. 